Terms - Proposals

[Roy Williams]

> So a mirror will generally always return the same results as the original. A
> snapshot can only guarantee to return the same results up until the next
> update of the original. An extract can never guarantee to return the same
> results.

We have astronomical datasets, called A and B.

A delivers a lossless compression of B. Are they mirrors?

When I query A and B, I get a table of results. A and B have different default sorting 
order. Are they mirrors?

A delivers much lower bandwidth than B. Are they mirrors?

A delivers data with calibration version 3.2 and B delivers calibration versions 3.1 and 
3.2. Are they mirrors?

A can deliver data from Virgo AND Orion, but B only covers Orion. Are they mirrors?

A is available all the time, but B is located in Utah and cannot deliver data on Sundays. 
Are they mirrors?

A is the server that is mentioned in the peer-reviewed publication by Professor Bigshot. 
The B data is a copy made by an irresponsible student, and is not mentionsed in the 
Bigshot paper. Are they mirrors?